Smart RFIC: Millimeter-wave gigabit transceivers with digitally-enabled built-in self-calibration and auto-switching functions: From single-ended ILFD toward differential miller frequency divider

This paper reviews recent digitally calibration and I\Q mismatch compensation techniques. A number of approaches have been reported to improve the circuit performance and enhance the system robustness. All these built-in self-calibration and auto-switching functions are innovated to pave the road to the next-generation millimeter-wave 5G mobile smart RFIC.